Home / 20,763,739.80-31,145,609.70-5,617,671.30

Finding the Fourth Proportional to 20,763,739.80, 31,145,609.70 and 5,617,671.30

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Solution

The fourth proportional to 20,763,739.80, 31,145,609.70 and 5,617,671.30 is: 8,426,506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,739.80 : 31,145,609.70 = 5,617,671.30 : x
  2. Step 2: Convert to fraction form
    20,763,739.80/31,145,609.70 = 5,617,671.30/x
  3. Step 3: Cross multiply
    20,763,739.80x = 31,145,609.70 × 5,617,671.30
  4. Step 4: Simplify right side
    20,763,739.80x = 174,965,797,732,691.59
  5. Step 5: Solve for x
    x = 174,965,797,732,691.59/20,763,739.80
  6. Step 6: Final answer
    x = 8,426,506.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.